Object: 01024+3735 On scan num: 2255 2257 2259 2261 2263 2265 2267 2269 2271 2273 Off scan num: 2256 2258 2260 2262 2264 2266 2268 2270 2272 2274 R.A.: 1.091121 hrs Dec.: 37.852804 deg On azimuth: 279.357327 deg On zenith dist.: 26.285798 deg Off azimuth: 279.342386 deg Off zenith dist.: 26.254631 deg MJD: 52254 UTC: 0.137245 Center freq.: 1391.213572 MHz Doppler: -0.00006741 Num. correlators: 2 Spectrom. atten.: 34 40 dB Bandwidth: 10.0 MHz Num. channels: 1024 Eff. integration: 2760 seconds
This spectrum is the integration of all data for the scan with spectra from both polarizations added together. The spectral intensities are Ssys * (on - off) / off, where Ssys is the system temperature in Jy. The system noise flux density equivalent is calibrated for each scan with a calibration noise source firing during each scan. The cal value, in Jy, is calibrated by comparison with a number of continuum sources as described in the summary web page
This spectrum is the same as Figure 1 but with 8 60-second sub-integrations manually deleted because of interference or a bad baseline.
This is the section of spectrum measured to obtain the parameters listed below. The three horizontal dotted lines are the baseline, the peak level selected, and 20% of the peak level. The two vertical dotted lines mark the selected 20% line width edges. The solid horizontal line marks the velocity range chosen for the the line profile flux density integral. This spectrum has a second-order least squares fit baseline removed using most of the baseline shown in Figure 2. Narrow band interference was removed from 3 channels by interpolation between the nearest valid channels
Peak intensity: 0.004 Jy Lower 20% velocity: 6027.3 km/s Upper 20% velocity: 6460.7 km/s Systemic velocity: 6244.0 km/s Line width (20%): 433.3 km/s Profile integral: 1.17 Jy * km/s A: 1.88 B: 1.68 Ratio B/A: 0.892 Flux integral velocity range: 5993.5 - 6487.6 km/s
extremely low SNR